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weibo_backup.py
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import requests
from datetime import datetime
import random
import time
# 开始时间，备份取这一天之后的所有数据
START_DATE = datetime.strptime('20220401','%Y%m%d')
#图片存储目录
IMG_PATH = '/Users/skyue/Dropbox/backup/weibo_backup/202204/'
#markdown文件存储目录
MD_PATH = '/Users/skyue/Dropbox/backup/weibo_backup/202204/'
#cookie从浏览器中取
HEADERS={
'cookie': '',
'user-agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.77 Safari/537.36'
}
# 获取单条微博内容，不含转发内容。
def get_one_weibo(wb_json_obj):
#print(wb_json_obj)
mblogid = wb_json_obj['mblogid']
print('mblogid:', mblogid)
wb_url = 'https://weibo.com/5384740764/' + mblogid
created_at = datetime.strptime(wb_json_obj['created_at'].replace('+0800',''),'%a %b %d %H:%M:%S %Y')
created_at_str = created_at.strftime('%Y-%m-%d %H:%M')
#print(wb_json_obj['user'])
#判断微博是否违规被平台删除
if wb_json_obj['user'] != None:
user_name = wb_json_obj['user']['screen_name']
if wb_json_obj['isLongText'] == False:
text_raw = wb_json_obj['text_raw'].replace('\u200b','').strip()
if 'url_struct' in wb_json_obj.keys():
text_raw = replace_url(text_raw, wb_json_obj['url_struct'])
else:
long_data = requests.get('https://weibo.com/ajax/statuses/longtext?id='+mblogid,headers=HEADERS).json()['data']
#print(long_data,'\n\n')
if 'longTextContent' in long_data.keys():
text_raw=long_data['longTextContent'].replace('\u200b','').strip()
if 'url_struct' in long_data.keys():
text_raw=replace_url(text_raw, long_data['url_struct'])
else:
text_raw = wb_json_obj['text_raw'].replace('\u200b','').strip()
if 'url_struct' in wb_json_obj.keys():
text_raw = replace_url(text_raw, wb_json_obj['url_struct'])
#微博内容，保留地理位置信息
if 'tag_struct' in wb_json_obj.keys():
for tag in wb_json_obj['tag_struct']:
if 'otype' in tag.keys() and tag['otype'] == 'place':
text_raw = text_raw + ' *at '+ tag['tag_name'] + '* '
pic_ids = wb_json_obj['pic_ids']
pic_text = ''
for pic_id in pic_ids:
#pic_url = wb_json_obj['pic_infos'][pic_id]['original']['url']
pic_url = 'https://wx1.sinaimg.cn/orj1080/' + pic_id + '.jpg'
pic_name = download_pic(pic_url, created_at.strftime('%Y%m%d'))
pic_text = pic_text + '![[' + pic_name + ']]' + '\n'
wb_text = '{text_raw}\n\n{pic_text}'.format(
text_raw=text_raw ,
#wb_url=wb_url,
pic_text=pic_text
)
else:
user_name = ''
wb_text = wb_json_obj['text_raw']
return {
'wb_time': created_at,
'wb_url': wb_url,
'wb_user': user_name,
'wb_text': wb_text,
'wb_md': '@{user_name}：{org_text} \n\n'.format(
user_name=user_name,
org_text=wb_text,
)
}
# 获取单条微博，若有转发含转发内容，并且封装成md格式文本
def get_single_weibo(wb_json_obj):
org_weibo=get_one_weibo(wb_json_obj)
if 'retweeted_status' in wb_json_obj.keys():
re_weibo=get_one_weibo(wb_json_obj['retweeted_status'])
full_text = '- [{time}]({url})\n\n{org_text}\n> {re_text}\n\n'.format(
time=org_weibo['wb_time'],
url=org_weibo['wb_url'],
org_text=org_weibo['wb_md'],
re_text=re_weibo['wb_md'].strip().replace('\n\n','\n> \n> ')
)
else:
full_text = '- [{time}]({url})\n\n{org_text}\n\n'.format(
time=org_weibo['wb_time'],
url=org_weibo['wb_url'],
org_text=org_weibo['wb_md'],
)
if 'url_struct' in wb_json_obj.keys():
full_text=replace_url(full_text, wb_json_obj['url_struct'])
return {
'wb_time': org_weibo['wb_time'],
'full_text': full_text
}
# 获取一页微博，且要求时间在START_DATE（含）之后
def get_page_weibo(page_no,START_DATE):
page_url = 'https://weibo.com/ajax/statuses/mymblog?uid=5384740764&feature=0&page=' + str(page_no)
wb_req = requests.get(page_url, headers=HEADERS)
if wb_req.json()['ok'] != 1:
return {
'page_no': page_no,
'ok': wb_req.json()['ok'],
'date_stop': False,
'my_wb_list': []
}
else:
print('ok')
wb_list = wb_req.json()['data']['list']
my_wb_list = []
date_stop = False
for wb in wb_list:
#print('wb:',wb,'\n')
single_wb = get_single_weibo(wb)
#print('single_wb:', single_wb, '\n')
time = single_wb['wb_time']
if time >= START_DATE:
my_wb_list.append(single_wb)
else:
date_stop = True
return {
'page_no': page_no,
'ok': 1,
'date_stop': date_stop,
'my_wb_list': my_wb_list
}
# 取START_DATE之后的所有微博，最多最多100页2000条
def get_month_weibo(START_DATE):
month_weibo = []
for page_no in range(1,100):
print('page_no:', page_no, '\n')
time.sleep(random.random()*5)
page_weibo = get_page_weibo(page_no, START_DATE)
month_weibo.append(page_weibo)
if page_weibo['date_stop'] == True:
break
return month_weibo
# 下载图片到pic文件夹，图片名加weibo-yyyymm前缀，并且返回图片的名称
def download_pic(url, daytime):
pic_name = 'weibo-' + daytime + '-' + url.split('?')[0].split('/')[-1]
pic_req = requests.get(url)
with open(IMG_PATH+pic_name, 'wb') as f:
f.write(pic_req.content)
return pic_name
# 将微博文本中的短链替换为原始长链
def replace_url(text, url_struct):
for url in url_struct:
md_url='[{url_title}]({long_url})'.format(url_title=url['url_title'], long_url=url['long_url'])
text=text.replace(url['short_url'], md_url)
return text
# 将微博写入md文件，并返回抓取失败的页面
def work():
month_weibo = get_month_weibo(START_DATE)
md_content = ''
page404 = []
for page in month_weibo:
print(page['page_no'],': ',page['ok'], '\n')
for weibo in page['my_wb_list']:
md_content = weibo['full_text'] + md_content
file_name = '微言小义（{start}）.md'.format(start=START_DATE.strftime('%Y%m'))
with open(MD_PATH + file_name,'w') as f:
f.write(md_content)
work()
print('done')